In this module, you have learned about the use of balancer chromosomes (such as TM2 and TM6C in the below crossing scheme) for isolating Drosophila mutants during EMS mutagenesis. Please inspect the following crossing scheme and choose which of the following statements is correct. A. TM6C is preferable over TM2 when performing mutagenesis B. EMS induces chromosomal inversion C. A balancer chromosome helps to isolate on which chromosome the mutant is located D. Following the above crossing scheme all flies with no TM2 or TM6C markers are mutants
In this module, you have learned about the use of balancer chromosomes (such as TM2 and TM6C in the below crossing scheme) for isolating Drosophila mutants during EMS mutagenesis. Please inspect the following crossing scheme and choose which of the following statements is correct. A. TM6C is preferable over TM2 when performing mutagenesis B. EMS induces chromosomal inversion C. A balancer chromosome helps to isolate on which chromosome the mutant is located D. Following the above crossing scheme all flies with no TM2 or TM6C markers are mutants
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Problem 13WPI
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In this module, you have learned about the use of balancer chromosomes (such as TM2 and TM6C in the below crossing scheme) for isolating Drosophila mutants during EMS mutagenesis. Please inspect the following crossing scheme and choose which of the following statements is correct.
| A. |
TM6C is preferable over TM2 when performing mutagenesis |
|
| B. |
EMS induces chromosomal inversion |
|
| C. |
A balancer chromosome helps to isolate on which chromosome the mutant is located |
|
| D. |
Following the above crossing scheme all flies with no TM2 or TM6C markers are mutants |
Transcribed Image Text:EMS
+/+
*/TM6C Or +/TM6C-
TM2/TM6C
*/* */TM6C
o
TM2/TM6C
o
o
*/TM6C X */TM6C or +/TM6C X +/TM6C
+/+ +/TM6C
o
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